Configuration Guide Configuring IP Addresses and Services
1 Configuring IP Addresses and Services
1.1 Overview
Internet Protocol (IP) sends packets to the destination from the source by using logical (or virtual) addresses, namely IP
addresses. At the network layer, routers forward packets based on IP addresses.
Protocols and Standards
RFC 1918: Address Allocation for Private Internets
RFC 1166: Internet Numbers
1.2 Applications
Configuring an IP Address for
Communication
Two networks communicate through one switch interface.
1.2.1 Configuring an IP Address for Communication
Scenario
A switch is connected to a Local Area Network (LAN), which is divided into two network segments, namely, 172.16.1.0/24
and 172.16.2.0/24. Computers in the two network segments can communicate with the Internet through switches and
computers between the two network segments can communicate with each other.
Figure 1-1 Configuring IP Addresses
Deployment
Configure two IP addresses on VLAN1. One is a primary IP address and the other is a secondary IP address.
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